docs: register triage_specifier in the aux-models enumerations (#21494)

The kanban specifier landed in #21435 with feature-page docs (the
kanban page itself + the CLI reference table), but three other docs
pages enumerate every auxiliary task slot and were missed:

  user-guide/configuration.md            Auxiliary Models section —
                                         interactive picker example
                                         + full auxiliary config
                                         reference YAML block.
  user-guide/features/fallback-providers.md
                                         Both 'Auxiliary Tasks' and
                                         'Fallback Reference' tables.
  user-guide/features/kanban-tutorial.md
                                         Triage-column bullet now
                                         mentions the ✨ Specify
                                         button + CLI + slash command.

No other docs enumerate the aux task slots (verified with
grep -r 'title_generation\|auxiliary.session_search' website/docs/).

website/docs/user-guide/configuration.md

@@ -784,6 +784,7 @@ $ hermes model
 [ ] title_generation     currently: openrouter / google/gemini-3-flash-preview
 [ ] compression          currently: auto / main model
 [ ] approval             currently: auto / main model
+[ ] triage_specifier     currently: auto / main model
 ```
 
 Select a task, pick a provider (OAuth flows open a browser; API-key providers prompt), pick a model. The change persists to `auxiliary.<task>.*` in `config.yaml`. Same machinery as the main-model picker — no extra syntax to learn.
@@ -880,6 +881,18 @@ auxiliary:
     base_url: ""
     api_key: ""
     timeout: 30
+
+  # Kanban triage specifier — `hermes kanban specify <id>` (or the
+  # dashboard's ✨ Specify button on Triage-column cards) uses this
+  # slot to expand a one-liner into a concrete spec and promote the
+  # task to `todo`. Cheap fast models work well here; spec expansion
+  # is short and doesn't need reasoning depth.
+  triage_specifier:
+    provider: "auto"
+    model: ""
+    base_url: ""
+    api_key: ""
+    timeout: 120
 ```
 
 :::tip

website/docs/user-guide/features/fallback-providers.md

@@ -192,6 +192,7 @@ Hermes uses separate lightweight models for side tasks. Each task has its own pr
 | MCP | MCP helper operations | `auxiliary.mcp` |
 | Approval | Smart command-approval classification | `auxiliary.approval` |
 | Title Generation | Session title summaries | `auxiliary.title_generation` |
+| Triage Specifier | `hermes kanban specify` / dashboard ✨ button — fleshes out a one-liner triage task into a real spec | `auxiliary.triage_specifier` |
 
 ### Auto-Detection Chain
 
@@ -384,5 +385,6 @@ See [Scheduled Tasks (Cron)](/docs/user-guide/features/cron) for full configurat
 | MCP helpers | Auto-detection chain | `auxiliary.mcp` |
 | Approval classification | Auto-detection chain | `auxiliary.approval` |
 | Title generation | Auto-detection chain | `auxiliary.title_generation` |
+| Triage specifier | Auto-detection chain | `auxiliary.triage_specifier` |
 | Delegation | Provider override only (no automatic fallback) | `delegation.provider` / `delegation.model` |
 | Cron jobs | Per-job provider override only (no automatic fallback) | Per-job `provider` / `model` |

website/docs/user-guide/features/kanban-tutorial.md

@@ -22,7 +22,7 @@ Throughout the tutorial, **code blocks labelled `bash` are commands *you* run.**
 
 Six columns, left to right:
 
-- **Triage** — raw ideas, a specifier will flesh out the spec before anyone works on them.
+- **Triage** — raw ideas, a specifier will flesh out the spec before anyone works on them. Click the **✨ Specify** button on any triage card (or run `hermes kanban specify <id>` / `/kanban specify <id>` from a chat) to have the auxiliary LLM turn a one-liner into a full spec (goal, approach, acceptance criteria) and promote it to `todo` in one shot. Configure which model runs it under `auxiliary.triage_specifier` in `config.yaml`.
 - **Todo** — created but waiting on dependencies, or not yet assigned.
 - **Ready** — assigned and waiting for the dispatcher to claim.
 - **In progress** — a worker is actively running the task. With "Lanes by profile" on (the default), this column sub-groups by assignee so you can see at a glance what each worker is doing.